Messages in this thread | | | Date | Mon, 12 Mar 2007 14:51:12 +0100 | From | Ingo Molnar <> | Subject | Re: lockdep question (was Re: IPoIB caused a kernel: BUG: softlockup detected on CPU#0!) |
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* Michael S. Tsirkin <mst@mellanox.co.il> wrote:
> > could you turn on CONFIG_SLAB_DEBUG as well? > > > > that should catch certain types of use-after-free accesses, and > > lockdep will also warn if a still locked object is freed. > > Hmm, no, this does not look like use-after-free. I enabled > CONFIG_SLAB_DEBUG, and I still see the same message, so the memory was > not overwritten by slab debugger.
that's still not conclusive - the memory might not have been allocated by slab again to detect it. Your magic-number check definitely shows some sort of corruption going on, right?
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